Metal-alike polymer composites: The effect of inter-layer content on the pseudo-ductile behaviour of carbon fibre/epoxy resin materials

With interfacially engineered pseudo-ductile carbon fibre reinforced polymer composites, a higher energy absorption capacity and metal-like stress-strain response can be achieved during failure. Due to incorporated inter-layer additives deposited with fused filament fabrication, locally weakened zones printed on the surface of reinforcing material, which provides better capability composite laminates’ damage process by alteration crack propagation. The reason for this phenomenon is that cracks near inter-layered require more propagate, delays onset final failure in form local damage. modified layers are then infiltrated an amine-cured epoxy vacuum assisted infusion. change behaviour as function interfacial additive content was investigated, along mechanical properties. relationship determined various tests, quasi-static dynamic, from unmodified composites (0% interlayer used) up 100% (i.e. film) between matrix reinforcement. We have investigated method repair specimens after bending tests via melting thermoplastic interlayer. results show use critical stress intensity factor increased, ductile improved thanks altered